The RFDC8M3G20B from RF-Lambda is a Directional Coupler with Frequency 800 MHz to 2.5 GHz, Coupling 20 dB, Amplitude Flatness 0.7 dB, Directivity 20 dB, Average Power 200 W. Tags: Module with Connectors. More details for RFDC8M3G20B can be seen below.